Steam-muffler



(No Modem W. E. PEARSON.

STEAM MUFFLER.

N0. 396,507. J F19 gaienteti-Jan. 22. v1889.

N. PETERS. Phuio-Lilhognphcr, Wm; nnnnnnnn c UNITED STATES HATENT OFFICE.

IVILLIAH E. PEARSON, OF SAUGUS, ASSIGNOR TO NATHAN II. DANIELS, OF BOSTON, MASSACHUSETTS.

STEAM-MUFFLER.

SPECIFICATION forming part of Letters Patent No. 396,507,. dated January 22, 1889.

- Application filed December 12, 1887. $erial No. 257,602. (No model.)

To all whom it may concern.-

Be it known that I, WILLIAM E. PEARSON, of Saugus, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Steam-Mu lflcrs,

of which the following is a specification.

This invention has for its object to provide improved means for admitting steam into a body of water without the unpleasant noise that usually attends the discharge of steam into water; and it comprises the detail construction, combination, and arrangement of parts, substantially as hereinafter fully set forth, and particularly pointed out in the I 5 claim.

Of the accompanying drawings, forming a part of this specification, Figure 1 represents a side elevation'of my improved muffler and a longitudinal section of the tank containing the same. Fig. 2 represents an end elevation of the muffler and a transverse section of the tank.

The same letters of reference indicate the same parts in both figures.

In the drawings, a represents a tank which holds a body of water for boiler-feeding or other purposes. Said tank communicates with the atmosphere through a pipe, I), so that pressure within the tank is impossible.

The muffler is composed of a head or steamreceptacle, 0, located in the upper portion of the tank, and connected by a pipe, (I, with a source of steam-supply, and a plurality of long nozzles, 6, extending from the head into 3 5 the water-space of the tank, so that they are immersed in the water for all or the greater part of their length.

The combined area of the nozzles @is equal to or greater than that of the pipe (Z, so that they receive all the steam that can be supplied by said pipe, and therefore prevent back pressure in the latter. The length of the 11ozzles exposed to the water in the tank is such that the steam in passing through the nozzles necessarily raises the temperature of the surrounding water and has its own temperature reduced so that the temperature of the water is nearly equal to that of the steam at the discharging ends of the nozzles, the latter being arranged quite close together and uniformly 5o distributed through the tank, so that all parts of the water are uniformly heated by the steam. The result is that the steam enters the water without noise.

It is obvious that the form and arrangement 5 5 of the parts of the muffier may be variously modified without departing from the spirit of my invention.

The tank and mufflcr here shown form a part of the feed-water-heating apparatus of my improved motor, which forms the subject of another application for Letters Patent filed concurrently with this application; but I do not limit the improvements here described and claimed to use in the said motor, as the muffler may be used for various other purposes.

I claim- In a steam-mutter, the combination, with the feed-water tank, of the upper longitudi- 7o nally-dis11msed head or steam-receptacle ha ing a pipe,'(?, opening into said head and a plurality of long nozzles extending from the said head or steam-receptacle, the combined area of said nozzles being equal to or greater than that of the said head or receptacle, substantially as shown and described, said nozzles being open at their outer ends only, whereby the steam in traversing said nozzles raises the temperature of the water, as set forth.

In testimony whereof I have signed, my name to this specificatiomin the presence of two subscribing witnesses, this 7th day of December, A. D. 1887.

\VILLIAM E. PEARSON.

Witnesses: A. D.'I'IARRISON, W. C. RAMSAY. 

